This weapon, Boltac Wristbow, is property of Ishimura_Elite.
The Boltac Wristbow is a unique and deadly assassination weapon designed for quick and silent kills. It is a forearm mounted miniature bow that can fire multiple types of precision bolts downrange with pinpoint accuracy. The bolts can also be locked in place to serve as a wrist mounted assassination blade for close encounters.
These particular wristbows are considered exotic weapons, due to their unique design and the special materials used to build them, making authentic Boltacs extremely rare and hard to come by.